Sökning: "surface drainage"
Visar resultat 1 - 5 av 78 avhandlingar innehållade orden surface drainage.
1. Cycle paths’ degradation processes and surface condition assessment
Sammanfattning : A shift in modal share from car driving to cycling has many benefits, both from individual- and societal perspectives, e.g., better health from an increase in physical activity, lower levels of pollution and congestion. However, there are also some potential problems with such a shift. LÄS MER
2. Phase transformation and surface chemistry of secondary iron minerals formed from acid mine drainage
Sammanfattning : The mining of sulphidic ore to extract metals such as zinc and copper produces huge quantities of waste material. The weathering and oxidation of the waste produces what is commonly known as Acid Mine Drainage (AMD), a dilute sulphuric acid rich in Fe(II) and heavy metals. LÄS MER
3. On rating of gravel roads
Sammanfattning : .... LÄS MER
4. Urban drainage and climate change : impact assessment
Sammanfattning : According to the Intergovernmental Panel on Climate Change (IPCC, 2007), the global mean temperature has increased by 0,7 °C during the last 100 years and, as a consequence, the hydrological cycle has intensified with, for example, more intense rainfall events. As urban drainage systems have been developed over a long period of time and design criteria are based upon climatic characteristics, these changes will affect the systems and the city accordingly. LÄS MER
5. Grassed swales for urban storm drainage
Sammanfattning : This thesis investigates the environmental, economic and functional aspects of using grassed swales for the conveyance and treatment of stormwater. A grassed swale is a shallow, grass-lined channel. LÄS MER
